Thermodynamic characteristics and Langmuir–Blodgett deposition behavior of mixed DPPA/DPPC monolayers at air/liquid interfaces

Differences in surface behaviour of galactolipoids originating from different kind of wheat tissue cultivated in vitro

“…The interactions between hetero-molecules in the mixed MGDG/DGDG monolayers can be examined by a quantitative analysis of the excess area ( A EXC ) (Lee et al, 2006). The excess area can be calculated by comparing the average area per molecule of a mixed monolayer consisting of components 1 and 2, A 12 with that of an ideal mixed monolayer, A id :…”

Effects of Fullerenes on Phospholipid Membranes: A Langmuir Monolayer Study

“…For example, DG exc was reported to be approximately À600, À1200, À1900, and 1000 J mol À1 at X additive = 0.3 and p % 30 mN m À1 for DPPC/cholesterol, DPPC/dipalmitoylphosphatic acid (DPPA), DPPC/dihexadecylphosphate (DHPS), and DPPC/dilauroylphosphatidylcholine (DLPC) monolayers, respectively. [24,[35][36][37] The small values of DG exc for the DPPC/C 60 system connote that the attractive interaction between the two components is very weak, but the miscibility increases with increasing surface pressure, probably due to enhanced many-body interactions at high film densities. [11][12][13] Atomic force microscopy images have clearly shown the DPPC monolayers in different phases (LE and LC; see Figure S2 of the Supporting Information) which were transferred to freshly cleaved mica surfaces at defined surface pressures.…”

Synthesis and Self-assembly of DMPC-conjugated Gold Nanoparticles

“…The spherical shape of the nanoparticles and their well-separated disposition in the TEM images (Figure 4) can conceivably be ascribed to the lipid capping molecules of the gold nanoparticles. Considering the structural similarities between lipids and surfactants [12,13] and the proposed nature of the interaction of surfactants with metallic nanoparticles [2,11], it could be suggested that the polar head group of DMPC stabilizes the nanoparticles by forming non-covalent bonds. The hydrocarbon tails of the attached lipids extend beyond the surface of the nanoparticle, assist in maintaining a stable solution in non-polar toluene by providing a hydrophobic shield preventing nanoparticle aggregation.…”

“…Phospholipids, integral components of cell membranes, are composed of polar head groups and nonpolar hydrocarbon tails [12]. Because of the amphiphilic nature of lipids, it is possible to modulate biomolecular interactions by altering the hydrophobic and hydrophilic components of their molecular frame.…”

“…Comparative analyses between assemblies of the DMPC capped gold nanoparticles and unmodified DMPC molecules were performed to understand the effect of the direct conjugation of the gold nanoparticle on the lipid. By extending this method, the fabrication of nanoparticles films on a substrate can be achieved to develop solid-state devices [12].…”